Duplex nozzle for sprayers



Feb. 28, 1939. H. E. BRANDT 2,148,726

DUPLEX NOZZLE FOR SPRAYERS Fi led Nov. 17, 19:57

ghee-.1939

UNITED STATES PATENT OFFICE I auam This-invention relates we nozzle or discharge head forrspraying or discharging insecticide material.w\while the invention might be useful for various materials of a fluid or liquid nature it particularly is designed for spraying dust or powder. Various insecticides are now commonly sprayed onvegetation in the form of dust. With certain types of'sprayers for spraying certain plants ithas been the custom to have a nozzle with discharge holes in its end forspraying the tops 'of' the leaves and to have another nozzle used interchangeably with the first mentioned nozzle having an opening in its side by means,

of which the undersurface of the leaves could be sprayed. n

It is an object of this invention to provide a nozzle or discharge device by means of which both the tops and bottoms of the leaves can be sprayed without changing nozzles.

It is another object of the invention to provide a discharge device having an end wall with means through which the material is sprayed and having a side wall with means through which the material may be sprayed together with means for rendering one of said means operative and simultaneously rendering the other inoperative.

It is a further object of the invention to provide a nozzle having an end wall and a substantially cylindrical side wall, said end wall having one or more discharge openings therethrough and said side wall having adischarge slot extending therethrough together with means for closing said opening or openings in said end wall when said slot is opened and for closing said slot when said opening or openings in said end wall are open.

These and other objects and advantages of the invention will be fully set forth in the following description made in connection with the accompanying drawing in which like reference characters refer to similar parts throughout the several views in which:

Fig. 1 is a perspective view of the nozzle and discharge pipe connected thereto;

Fig. 2 is a view taken on line 2-2 of Fig. 3 .as indicated by the arrow part of the discharge pipe being shown in side elevation:

Fig. 3 is a top plan view of the nozzle;

Fig. 4 is a view similar to Fig. 2 showing the parts in a different position;

Fig. 5 is a plan view showing the parts in a different position than shown in Fig. 3 and Fig. 6 is a view partly in plan and partly in horizontal section, some parts being broken away, said view being shown on an enlarged scale.

Referring tothe drawing a device is shown nurmx nozzhn son sraamas nenr 'a. Brandt, St. Paul, Minn, namito 1 Manufacturlng Company. St. Paul.

q Na e-s e n. 1931, Serial m 115,066 '0 Claims. (Ci. 43-148) comprising a supply pipe or tube ID. This tube has secured thereto adjacent its end a circular plate ll having a cylindrical hub Ila fitting about tube l0 and secured thereto in any suitable manner as by soldering or brazing. A shell 5 l2 having a cylindrical wall l2a and an end wall l2b is provided, said end wall extending substantially transversely of said cylindrical wall. Said cylindrical wall "fat the end opposite said end wall has a bead l2c formed thereon which extends about and embraces the edge of plate ll. Plate ll will be rigidly secured to the bead l2c and thus the shell l2 in any suitable manner so that a tight joint is formed. Shell I2 also has a slot 12d of comparatively narrow width extending circumferentially of its wall I20 and parallel to plate ll. Said shell l2 also has a plurality of circumierentially spaced holes l2e through the end wall l2b, said holes being equi-distant from the central axis of said shell. As shown, end wall l2b has a central depression concave on its upper side and extends to side wall l2a in a compound curve. A second shell i3 is provided having an end wall Na and a cylindrical side wall lib fitting closely to end wall I21) and side wall l2a respectively. Shells l2 and I3 are connected bya headed rivet I 4, the same having a spring washer l5 under the head thereof at the inner side of the shell l2. Shell I3 is connected so as to be revoluble about shell l2. Shell l3 also has a slot lie formed therein arranged to register or align withslot l2d in a certain position of shell l3 but also adaptedpto be moved out of alignment with slot l2d. Shell l2 has a small lug l2 formed thereon which projects through slot I20 and forms a stop limiting the revoluble movement of shell l3. Shell l3 also has a plurality of holes ltd through its end wall which holes are arranged to align with or register with the holes l2e when slots l2d and He are out of alignment. Conversely, it will be seen that when shell I! is rotated to bring slots l2d and He to alignment that holes l3d will be out of alignment with holes l2e.

In the use of the device the tube Ill which is usually of considerable length so as'to reach down 2 I time the holes through the end wall of the nozzle are closed. When it is desirable to spray the tops of the leaves shell ill will be rotated to position to bring holes ltd and He into alignment and the insecticide will then be discharged through these holes. The slots l2d and [30 will be out of alignment and thus no material can be discharged through the side wall of the nozzle. The shells will have a sufllciently close fit and have sufllcient friction due to washer l5 so that shell I3 will remain in the position to which it is moved.

From the above description it is seen that applicant has provided a very simple and efilcient structure of nozzle and one with which it will not be necessary to change nozzles to spray the tops and bottoms of the leaves. It will only be necessary to merely rotate the outer shell ill to the proper position to place the nozzles in the desired spraying condition. The nozzle thus has a double function and much time is saved in eliminatin the changing of nozzles. The device has been amply demonstrated in actual practice and is being commercially made.

It will, of course, be understood that various changes may be made in the form, details, ar-

rangement and proportions of the parts, without 4 departing from the scope of applicant's invention, which generally stated, consists in a device capable of carrying out the objects above set forth in the parts and combinations of parts disclosed and defined in the appended claims.

What is claimed is:

l. A discharge nozzle for spraying insecticide material comprising a shell having a substantially cylindrical wall and a topside extending transversely of said wall, said wall having a narrow opening therethrough extending circumferentially thereof and said top side having a spray opening therethrough and means for closing one of said openings and simultaneously opening the other.

2. A discharge nozzle forspraying insecticide material comprising a shell having an end wall and a side wall, said shell having means for discharging said material through said end wall and means for discharging said material through said side wall and means for rendering one of said means operative and simultaneously rendering the other inoperative.

3. A discharge nozzle for spraying insecticide material comprising a stationary shell having an end wall and a substantially cylindrical side wall. said shell having a circumferentially extending slot in its cylindrical wall. and a plurality of holes in said end wall, a second shell fitting about and movable relatively to said first mentioned shell having a slot therein and holes therethrough, said latter holes being arranged to register with said first mentioned holes when said slots are out of register and said slots being arranged to register when said holes are out of register.

5. A discharge-device for spraying insecticide material comprising. a container from which material is adapted to be discharged, said container having spaced openings through which material may be discharged therefrom in directions substantially at right angles to each other and means for closing one 01' said openings and simultaneously opening the other.

6. A discharge nozzle'for spraying insecticide material comprising a shell having an end wall and a side wall, said shell having an opening in said end wallfor discharging material therefrom and having an opening in said side wall for discharging material therethrough and means for having, either of said openings closed while the other is open.

. HENRY E. BRANDT. 

